MicroLife 6-2-4 All Organic Biological Fertilizer
Best organic fertilizer for eco-conscious gardeners seeking healthy, thriving plants.
Elevate your garden with MicroLife 6-2-4 All Organic Biological Fertilizer. This granular, slow-release formula nourishes plants with a balanced 6-2-4 NPK ratio, promoting vibrant growth and robust root systems. Composed entirely of organic ingredients, it enhances soil health and biodiversity without harsh chemicals, making it safe for the environment, pets, and children. Suitable for all plant types and applicable in any season, it's ideal for lawns, ornamentals, flowers, and vegetables. Available in a 40 lb bag, it ensures comprehensive plant nutrition and improved soil fertility for a thriving garden.
$39.99
Owner Satisfaction
4.7
/ 5
Category Rank
50
/ 4425
#50 in Fertilizers
Price vs Category Average
-35%
Below average
NPK Ratio
624
/ --
Who it's for
- Plant enthusiasts seeking balanced, steady growth for their garden
- Gardeners focused on long-term soil health and microbial vitality
- Pet owners and parents prioritizing safety in the backyard
Who should skip it
- Impatience-prone gardeners wanting immediate visual results
- Budget-conscious shoppers comparing costs against synthetic alternatives
- Sensitive homeowners bothered by temporary organic scents
Performance breakdown
Soil Microbiome Impact
Billions of beneficial microbes actively revitalize depleted soil ecosystems.
Nutrient Release Consistency
Slow-release formula ensures steady feeding without risking chemical burn.
Versatility
One bag effectively treats everything from delicate flowers to expansive lawns.
Safety Profile
Organic composition makes it perfectly safe for pets and small children.
Root Development Support
Mycorrhizal fungi integration builds a superior foundation for long-term plant health.
Application Ease
Granular texture allows for simple, even distribution across any garden space.
Key Specs
NPK Ratio
6-2-4
Form
Granular
Type
All Organic Biological Fertilizer
Application
All seasons, all plant types
Weight
40 lb
Release Type
100% Slow Release
Contains
Fish, Kelp, Molasses, Emery Humates, Bat Guano, Rock Phosphate, Wheat Middling’s, Soy Meal, Cottonseed Meal, Alfalfa, Corn Meal, Kmag, Potassium Sulfate, Iron Sulfate, 18 select Amino Acids, Folic Acid, Vitamins, MicroGro Supreme Bio-Inoculant package (billions of beneficial microorganisms including Endo & Ecto Mycorrhizal fungi)
Fertilizer Type
Biological Fertilizer
Features
- Promotes vibrant growth and rich plant color.
- Enhances soil health and biodiversity.
- Safe for environment, pets, and children.
- Supports robust root development.
- Versatile for all plant types and seasons.
- Provides over 100 essential nutrients.
- Contains billions of beneficial microbes.
- 100% slow-release formula prevents burning.
What customers say
Customers overwhelmingly praise MicroLife 6-2-4 for its superior biological effectiveness, noting rapid, visible improvements in lawn color and plant vigor. Reviewers value the focus on long-term soil health and sustainability, appreciating this holistic approach over quick chemical fixes. The formula simplifies feeding due to its comprehensive nature and ease of application. While results are consistently excellent, the premium price point is the main drawback for some consumers evaluating overall value. Despite the higher cost, those prioritizing safety and proven performance consider this organic fertilizer a worthwhile investment, especially for improving challenging soil structures.
Know before you buy
No, the formula is 100% slow-release, which significantly reduces the risk of burning your plants compared to synthetic, fast-acting fertilizers.
Yes, MicroLife 6-2-4 is composed entirely of organic ingredients and contains no harsh chemicals, making it safe for use around children and pets.
This fertilizer is highly versatile and safe for all plant types, including vegetables, flowers, trees, shrubs, and lawns.
Being a biological fertilizer, it contains billions of beneficial microbes and mycorrhizal fungi that actively work to improve soil structure, biodiversity, and nutrient uptake.
Because it is a slow-release organic formula, it is suitable for application during any season, allowing you to nourish your garden year-round.
The 6-2-4 ratio provides a balanced supply of nitrogen for foliage growth, phosphorus for root development, and potassium for overall plant health and resilience.
Still have a question?
Ask Hayley anything about this product before you decide.